title: Isolation of beta-lactamase-producing Bacteroides strains associated with clinical failures with penicillin treatment of human orofacial infections.
mesh_terms: D000038:Abscess / Q000188:drug therapy / Q000382:microbiology*; D000328:Adult; D000900:Anti-Bacterial Agents / Q000494:pharmacology; D001439:Bacteroides / Q000187:drug effects / Q000201:enzymology / Q000302:isolation & purification*; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D009059:Mouth Diseases / Q000188:drug therapy / Q000382:microbiology*; D010403:Penicillin Resistance; D010404:Penicillin V / Q000627:therapeutic use; D001618:beta-Lactamases / Q000378:metabolism*
chemical_list: D000900:Anti-Bacterial Agents; D001618:beta-Lactamases; D010404:Penicillin V